The AMD CPU used on the X120e is microcode-upgradeable. To enable this functionality install the ''amd-ucode'' packages (available on extra) and add ''microcode'' to the MODULE list on /etc/rc.conf.

+

+

== Video drivers ==

−

==Video Drivers==

Users have the choice between the open source [[ATI]] video driver or the closed source [[Catalyst]] video driver.

Users have the choice between the open source [[ATI]] video driver or the closed source [[Catalyst]] video driver.

−

In order to use the open source driver you must have at least kernel 2.6.38.

+

== Wireless ==

−

The open source ATI driver has flawless performance (including suspend). [[Gnome 3]] works well with the open source ATI driver.

+

The Thinkpad x120e is available with one of two wireless cards.

+

*The Realtek BGN Wifi card is currently supported out of the box by the rtl8192ce driver, which was integrated into the Linux kernel as of version 3.2. This card, however, suffers from access point association and connection stability problems, especially in meshed wireless networks due to poor wireless radius detection. Since driver development by Realtek effectively stopped as of January 2012, the general consensus among many owners online has been to swap out this wireless card for a different better supported half-mini PCI card such as the Intel 6230. This however requires a BIOS patch to remove Lenovo's hardware restriction on which wireless cards can be used in the computer. More information in regards to that can be found in [http://forums.mydigitallife.info/threads/20223-Remove-whitelist-check-add-ID-s-to-break-hardware-restrictions-mod-requests/page175 this] thread.

−

The Catalyst drivers do offer better 3D performance but usually have various minor issues (such as suspend support). As of kernel 3.2.6.2, suspend appears to work fine with this computer while using the catalyst drivers.

+

* The Broadcom ABGN Wifi card is currently supported by the b43 driver. This driver is recommended over the broadcom-wl.

−

==Wireless==

+

== Audio ==

−

The Thinkpad X120e can come with one of two wireless cards.

−

*The Realtek BGN Wifi card currently is supported by [https://aur.archlinux.org/packages.php?ID=46797 rtl8192ce] from AUR.

−

**The 2.6.38 kernel includes support for this card, but suffers from intermittent hard locks when associating with an access point. The AUR driver linked here does not suffer from this problem. (The Ubuntu folks seem to have the [https://bugs.launchpad.net/ubuntu/+source/linux/+bug/769812 same issue] with the x120e and the module included in the kernel.)

−

**The rtl8192ce package is no longer in the AUR. The driver can be downloaded from Realtek [http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=48&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true#RTL8188CE here].

−

*The Broadcom ABGN Wifi card is currently supported by [https://aur.archlinux.org/packages.php?ID=19514 broadcom-wl] from AUR. See the [https://wiki.archlinux.org/index.php/Broadcom_wireless Broadcom wireless] wiki page for more info.

−

==Audio==

The kernel modules work, but the HDMI audio is the primary device (not the speaker). You can swap that:

The kernel modules work, but the HDMI audio is the primary device (not the speaker). You can swap that:

−

{{hc|$ cat ~/.asoundrc|

+

{{hc|$ vim ~/.asoundrc|

−

pcm.!default {

+

defaults.pcm.card 1

−

type hw

+

defaults.pcm.device 0

−

card 1

+

defaults.ctl.card 1

−

}

−

−

ctl.!default {

−

type hw

−

card 1

−

}

}}

}}

Note: Alternatively, you can accomplish the same thing by configuring the snd-hda-intel module:

Note: Alternatively, you can accomplish the same thing by configuring the snd-hda-intel module:

Because the sound card in the X120e isn't actually an Intel card (even though it uses the Intel HDA driver) I'm not sure if this actually does anything. Doesn't seem to cause any problems though.

−

echo 1 > /sys/module/snd_hda_intel/parameters/power_save

−

−

===CPU Undervolting===

{{Warning|Undervolting can lead to instability and consequently data loss, only you are responsible if you break something}}

{{Warning|Undervolting can lead to instability and consequently data loss, only you are responsible if you break something}}

==== Using PHC ====

==== Using PHC ====

−

The Fusion Processor can be undervolted with the PHC-K8 tool. See [[PHC]] for usage information. For the AMD Fusion you'll want to download [https://aur.archlinux.org/packages.php?ID=22953 phc-k8] from AUR.

+

The Fusion Processor can be undervolted with the PHC-K8 tool. See [[PHC]] for usage information. For the AMD Fusion you'll want to download {{AUR|phc-k8}} from the AUR.

{{Note|In order to lower CPU power usage you must actually raise the PHC values. (somewhat counter-intuitive)}}

{{Note|In order to lower CPU power usage you must actually raise the PHC values. (somewhat counter-intuitive)}}

"24 26 52" is what I have my E-350 set to. The three numbers represent 1600mhz, 1200mhz and 800mhz.

"24 26 52" is what I have my E-350 set to. The three numbers represent 1600mhz, 1200mhz and 800mhz.

Line 138:

Line 134:

Information output available cores and current frequencies and voltage:

Information output available cores and current frequencies and voltage:

−

sudo tpc -l

+

# tpc -l

−

Example how to use

+

Example how to use:

{{Warning|DO THIS AT YOUR OWN RISK!!!! DON'T USE THIS VALUES!!! Approach yourself to values whitch are working for you! This is just an example how to use tpc}}

{{Warning|DO THIS AT YOUR OWN RISK!!!! DON'T USE THIS VALUES!!! Approach yourself to values whitch are working for you! This is just an example how to use tpc}}

−

tpc -set core all pstate 2 frequency 825 vcore 0.825

+

# tpc -set core all pstate 2 frequency 825 vcore 0.825

−

tpc -set core all pstate 1 frequency 1320 vcore 1.2250

+

# tpc -set core all pstate 1 frequency 1320 vcore 1.2250

−

tpc -set core all pstate 0 frequency 1650 vcore 1.3000

+

# tpc -set core all pstate 0 frequency 1650 vcore 1.3000

+

+

=== Fan control ===

−

===Fan Control===

The X120e's fan spins constantly but luckily can be controlled by the user.

The X120e's fan spins constantly but luckily can be controlled by the user.

{{Warning|Modify fan settings at your own risk, only you are responsible if you toast your laptop or your lap.}}

{{Warning|Modify fan settings at your own risk, only you are responsible if you toast your laptop or your lap.}}

{{Note|Even with undervolting the APU produces enough heat to have to occasionally run the fan even at idle.}}

{{Note|Even with undervolting the APU produces enough heat to have to occasionally run the fan even at idle.}}

−

To enable manual fan control place the following into /etc/modprobe.d/modprobe.conf

+

To enable manual fan control place the following into {{ic|/etc/modprobe.d/modprobe.conf}}:

options thinkpad_acpi fan_control=1

options thinkpad_acpi fan_control=1

−

Now you have to reload thinkpad_acpi module or reboot your Netbook.

+

Now you have to reload thinkpad_acpi module or reboot your netbook.

# rmmod thinkpad_acpi && modprobe thinkpad_acpi

# rmmod thinkpad_acpi && modprobe thinkpad_acpi

Now it should look like that:

Now it should look like that:

Line 165:

Line 162:

−

At this point the fan will still be safely under the system's control. You can either directly modify the values in /proc/acpi/ibm (NOT RECOMMENDED. e.g. 'echo level 1 > /proc/acpi/ibm/fan') or install a fan control daemon such as [[https://aur.archlinux.org/packages.php?ID=24359 thinkfan]].

+

At this point the fan will still be safely under the system's control. You can either directly modify the values in /proc/acpi/ibm (NOT RECOMMENDED. e.g. 'echo level 1 > /proc/acpi/ibm/fan') or install a fan control daemon such as {{AUR|thinkfan}} from the AUR.

+

+

== Suspend and hibernation ==

+

Suspend works out of the box, but hibernate may fail - the system usually hangs with a black screen and a blinking power button led. To fix this we need to modify the hibernation mode; using pm-utils is just a matter of creaing a file /etc/pm/config.d/hibernate_mode containing a single line:

CPU

The AMD CPU used on the X120e is microcode-upgradeable. To enable this functionality install the amd-ucode packages (available on extra) and add microcode to the MODULE list on /etc/rc.conf.

Video drivers

Users have the choice between the open source ATI video driver or the closed source Catalyst video driver.

Wireless

The Thinkpad x120e is available with one of two wireless cards.

The Realtek BGN Wifi card is currently supported out of the box by the rtl8192ce driver, which was integrated into the Linux kernel as of version 3.2. This card, however, suffers from access point association and connection stability problems, especially in meshed wireless networks due to poor wireless radius detection. Since driver development by Realtek effectively stopped as of January 2012, the general consensus among many owners online has been to swap out this wireless card for a different better supported half-mini PCI card such as the Intel 6230. This however requires a BIOS patch to remove Lenovo's hardware restriction on which wireless cards can be used in the computer. More information in regards to that can be found in this thread.

The Broadcom ABGN Wifi card is currently supported by the b43 driver. This driver is recommended over the broadcom-wl.

Audio

The kernel modules work, but the HDMI audio is the primary device (not the speaker). You can swap that:

$ vim ~/.asoundrc

defaults.pcm.card 1
defaults.pcm.device 0
defaults.ctl.card 1

Note: Alternatively, you can accomplish the same thing by configuring the snd-hda-intel module:

$ grep snd-hda-intel /etc/modprobe.d/snd-hda-intel.conf

options snd-hda-intel index=1

By specifying index you should no longer specify the default in ~/.asoundrc.

Input

TrackPoint scrolling (wheel emulation)

To enable scrolling with the TrackPoint while holding down the middle mouse button, create a new file /etc/X11/xorg.conf.d/20-thinkpad.conf with the following content:

If you want to disable Bluetooth at every boot just add that line to /etc/rc.local

ATI video card powersaving

Under the opensource ATI video card driver you can control the clockspeed of the GPU.
The recommended setting is:

echo dynpm > /sys/class/drm/card0/device/power_method

This enables dynamic frequency switching based off of GPU load.
Further information on this topic can be found in ATI#Powersaving.

CPU undervolting

Warning: Undervolting can lead to instability and consequently data loss, only you are responsible if you break something

Using PHC

The Fusion Processor can be undervolted with the PHC-K8 tool. See PHC for usage information. For the AMD Fusion you'll want to download phc-k8AUR from the AUR.

Note: In order to lower CPU power usage you must actually raise the PHC values. (somewhat counter-intuitive)

"24 26 52" is what I have my E-350 set to. The three numbers represent 1600mhz, 1200mhz and 800mhz.

Warning: The three values listed above are stable on MY processor. Due to variables during production, you're chip may be able to be undervolted more or LESS. Feel free to post the stable values that you reach to this wiki.

Using tpc

Another method for undervolting is tpcAUR. It is more intuitive then PHC tool and needs Kernelmodule cpuid and msr.

Information output available cores and current frequencies and voltage:

# tpc -l

Example how to use:

Warning: DO THIS AT YOUR OWN RISK!!!! DON'T USE THIS VALUES!!! Approach yourself to values whitch are working for you! This is just an example how to use tpc

At this point the fan will still be safely under the system's control. You can either directly modify the values in /proc/acpi/ibm (NOT RECOMMENDED. e.g. 'echo level 1 > /proc/acpi/ibm/fan') or install a fan control daemon such as thinkfanAUR from the AUR.

Suspend and hibernation

Suspend works out of the box, but hibernate may fail - the system usually hangs with a black screen and a blinking power button led. To fix this we need to modify the hibernation mode; using pm-utils is just a matter of creaing a file /etc/pm/config.d/hibernate_mode containing a single line: